OMGosh!! They are really cute and you did great. It is just like human child birth, you say you won't do it again, but you forget quick!!! I hope everything continues to go great. I had a tiny runt and he did fine. What are their weights?? She won't need the shot unless you think you missed a placenta. (at least that is my vet's policy) Also, all my pups had white on chest, it disappears and is perfectly normal.
Keep us posted.